Summary

PRINT ON THE SIDE. If you try to print it upright, the corner joint will be weak and snap.

I remixed this because I have Twinkly curtain lights on my house and the wind just beats them back and fourth. The orginal clipped worked for about a day until a strong wind came. So I made the end thinner to be more flexible and the gap thinner so it wouldn't be so easy for the lights to fly out.